Grain-drill.



H. C. WAITE.

GRAIN DRILL.

APPLICATION FILED rmmz, 1912.

Patented Sept. 23, 1913.

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H. C. WAITE.

GRAIN DRILL.

APPLIUATION FILED 1113.12, 1912.

Patented Sept. 23, 1913*.

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GRAIN-DRILL.

Specification of Letters Patent.

Patented Sept. 23, 1913.

Application filed February 12, 1912. Serial No. 677,069.

To all whom it may concern Be it known that I, HARRY C. WArrn, a citizen of the United States, residing at Lewistown, in the county of Fergus and State of Montana, have invented a new and useful Improvement in Grainsldrills, of which the following is a specification.

The object of my invention is to improve the operation of a grain-drill by enabling the feed of grain from the supply-box or hopper on the vehicle to the shoe to be arrested, expedited and retarded, thereby to render the sowing of the grain controllable and uniform; and my invention consists in means which Iliave devised for these various purposes in a grain-drill- In the accompanying drawing, Figure 1 is a broken section on line l, Fig: 2, of a grain-drill provided with my improvements; Fig. 2 isa section on line 2, Fig. 1, and Fig. 3 is a section on line 3, Fig. 1.

Only so much of a known type of graindrill is illustrated in the drawings as is necessary to enable my improvements to be readily understood from the description hereinafter' contained.

The axle 4l, which is usually divided. carries on its opposite ends the vehicle-wheels, like that shown at 5; and the body of the vehicle is a box 6 for holding the supply of seed-grain, having a hopper-like bottom 3 provided centrally of its base with a longitudinal series of outlet-openings 7 each equipped with a dischargespout connected by a section of hose 8 with a shoe 9 depending behind a disk 10. A vertical dischargespout 1.1 at each opening 7 is formed with a transverse tubular head 12 on its lower end, having a depending end-section 121 to which the hose S is attached and at the entrance to which is formed a constriction 122 to afford a dam against the grain being shaken out; and the spout is provided with a flange 13 to fit against the hase of the hopper 6.r In the head 12 is `ioiirnaled a conveyer 14, of the preferred worrntype shown, extending across the spoutoutlet into the hea d to shut off the discharge of grain when the conveyer is stationary, and when in motion to feed the grain regularly to the head-section 121. The conveyer-shaft carries on one end a sprocket 15. A shaft 16 is journaled in the sides of the lower part of the hopper 6 and carries on one end a sprocket 17 and on its opposite end a frictiondisk 18. The series of sprockets 15 are connected by a chain 19 driven hy engagement with it of the sprocket 17. The shaft 1G, which is longitudinally shiftahle in its bearings for the purpose hereinafter explained, is pressed at one end by a stiff spring 2O fastened to a side of the hopper (3 and carrying on its lower end a pointed head 21 to hear against the shaft-end. The fastening of this spring, as hy a bolt, is such as to adapt it to he firmly secured in position to press the shaft and to be loosened and turned out of alineinent therewith. A rock-shaft 22 is journaled in bearings in the sides of the hopper (i to extend parallel with the shaft and to one side of the latter in a higher plane; and it carries on one end an operating handle 23 adjustably fastened near .its upperend by a wingnut 24; on a bolt working in the segmental slot of a gage-head 2G on the corresponding side of the seed-hopper. The opposite end of this shaft carries a crank-arm 27 connected with one end of a shiftinga'od 2S, the opposite end of which is connected with a friction-wheel 29 feathered on a shaft 30 journaled in suitahle bearings to extend at righhangles to the shaft 1G and adapt the wheel 29 to engage frictionally with the opposing` face of the disk 1S: and the shaft- ?30 carries on its outer end a sprocket 31 connected hv a chain 32 with a sprocket 33 on the vehicle-axle 4f.

W'ith the grain-drill in operation. rotation of the axle rotates the wheel 29 against the disk 18, thereby driving the shaft 1G to rotate the series of conveyors 111-. which thus feed the grain that comes to them by gravity from the hopper 6, uniformly through the heads 12 to the devices 9. Then the machine stops, rotation of the conveyors ceases and their feeding action is discontinued. Thus they act as valves or stopper-s for the spouts 11 to sluit oft' the passage of grain through them. thereby preventing waste and improper sowing. This saine result may be produced at any time, as in cases of emergencv, by turning to one side the spring 20 to disengage the head 21 from the shaft 16, since then the disk 18 will yield to the pressure of the wheel 29 against it and the shaft 16 will therefore not he revolved. To change the speed of the feeding action of the conveyers, the lever 23 is turned to rock the shaft 22 and thereby shift the wheel 29, according to desire, relative to the center of the disk 18.

I realize that considerable variation is possible in the detailsof constructionthus specifically shown and described, and I do not intend by illustrating a single, specilic, or preferred form to limit my invention thereto; my intention being in the appended claims to claim protection upon all the novelty there may be in the device as broadly as the state of the art Will permit.

What I claim as new and desire to secure by Letters Patent is- Y u l. In a grain-drill, the combination with the hopper having a longitudinal series of bottom outlets, of discharge-sponts at said outlets7 stopper-forming and grain-feeding Worin-conveyers in the spouts carrying chain-connected sprockets, a shaft journaled in said hopper and carrying on one end a sprocket engaging said chain, a friction-disk on the opposite end of said shaft, and a friction-Wheel supported to engage the face of said disk and geared to the aXle ofthe grain-drill to be driven thereby.

2. In a grain-drill, the combination-With the hopper having a longitudinal series of bottom outlets, of discharge-spouts at said Y outlets, stopper-forming and grain-feeding Worm-conveyers in the spouts carrying chain-connected sprockets, a shaft j ournaled in said hopper and longitudinally movable in its bearings, a sprocket on one end of the shaft engaging said chain and a frictionn disk on the opposite end thereof, a friction- Wheel supported to engage the face of said disk and geared to the axle of the grain-drill to be driven thereby, and a spring pressing against the shaft to force said disk against Y said Wheel.

3. ln a grain-drill, the combination with the hopper having a longitudinal series' of bottom outlets, of discharge-spouts at said outlets, stopper-forming and grain-feeding screW-conveyers in the spouts carrying chain-connected sprockets, a shaft journaled in said hopper and longitudinally movable init's bearings, a sprocket on one end of the shaft engaging said Vchain and a frictiondisk on the opposite end thereof, aV friction- Wheel supported to engage the face of said disk and geared to the aXle of the grain-drill to be driven thereby, and a spring adjustably fastened to the box and provided With a head to bear against the adjacent end of the shaft and force said disk against said Wheel. v i

4t. Ina grain-drill, the combinationvwvith the hopper having a longitudinal series of bottom outlets, of discharge-spouts at said outlets, stopper-forming and grain-feeding Worm-conveyers in the spouts, a shaft journaled on said hopper and geared to said conveyers, a friction-disk on said shaft, a second shaft journaled to extend at right angles to said first-named shaftand geared to the axle of the grain-drillto bei, driven Y thereby, a frictionwvvheel feathered on vsaid 55 Y second shaft to beV adjustable,longitudinally thereof and engage the'fac'e of said disk, a rock-shaft journaled in thephopper, having a crank-arm connected With said vvheel` toV adjust it relative to the center of said face,

an operating handle on the rock-shaft, and

a gage-head provided With means forreleasably fastening thereto salidjhandle,

In presence of-` L. linIsLAB, v R. SCHAEFER.

Copies of this patent may'be obtained for ve cents each, by addressing the Commissioner ofl Patents.`

Washington, D. C. y v

HARRY o Wairnf 

